The single leg glute bridge is one of the most valuable and most underused exercises in lower body training. While the bilateral glute bridge is widely known and commonly included in warm-up routines and rehabilitation programmes, the single-leg version develops qualities that the bilateral version simply cannot: unilateral glute strength, pelvic stability under asymmetric loading, and the ability to reveal and address side-to-side strength imbalances that the two-leg version masks.
For runners, every stride involves a single-leg loading phase where the glute must stabilise the pelvis and drive hip extension independently. For anyone with lower back pain, the single-leg version develops the specific gluteal strength that prevents the compensatory lumbar loading patterns described in the hip lower back exercises article on this site. For general fitness, it is the natural and essential progression from the bilateral bridge.
How the Single Leg Glute Bridge Differs From the Bilateral Version
The bilateral glute bridge is performed with both feet on the floor, dividing the load between both legs. The single leg version removes the support of the non-working leg, placing the entire load on the working glute and hip.
The practical consequences of this change:
Double the load per leg: A single leg glute bridge with bodyweight places approximately twice the hip extension demand on the working leg compared to a bilateral bridge of the same body weight. This is a significant strength increase without adding any external resistance.
Pelvic stability demand: With both feet on the floor, the pelvis is inherently stable in the lateral direction. With one foot off the floor, the gluteus medius and minimus of the working leg must work isometrically to prevent the pelvis from dropping on the unsupported side. This pelvic stability demand is absent from the bilateral version.
Asymmetry revelation: Bilateral exercises allow the stronger side to compensate for the weaker. The single leg bridge exposes which side is truly weaker: the height achieved, the degree of pelvic drop, and the ease of the movement will differ between sides in most people, revealing imbalances that the bilateral version conceals.
Core anti-rotation demand: The asymmetric loading of the single leg bridge creates a rotational force on the pelvis and lumbar spine that the core must resist. This anti-rotation demand is absent from the bilateral version.
Muscles Worked
Primary:
- Gluteus maximus (working leg): The primary hip extensor, producing the upward drive of the hips. The single-leg loading approximately doubles the per-leg demand compared to the bilateral bridge.
Secondary:
- Gluteus medius and minimus (working leg): Work isometrically to prevent the pelvis from dropping on the non-working leg side throughout the exercise.
- Hamstrings (working leg): Contribute to hip extension and knee stability during the bridging movement.
- Core (anti-rotation stabilisers): Resist the rotational force created by the asymmetric loading.
- Hip external rotators: Maintain neutral hip rotation during the single-leg stance.
Step-by-Step Technique
Starting Position
- Lie on the back with both knees bent and feet flat on the floor, approximately hip-width apart
- The feet should be positioned so the shins are approximately vertical when the hips are raised to the bridge position
- Extend one leg straight toward the ceiling or keep it bent at 90 degrees parallel to the other thigh (these are different technique options, both valid, covered below)
- Arms should be flat on the floor beside the body for stability
The two extended leg positions:
Straight leg extended (more demanding): The non-working leg extends straight up toward the ceiling or diagonally forward at 45 degrees. This position creates a greater asymmetric load on the working side and a larger anti-rotation demand on the core.
Knee bent, parallel to the working leg (less demanding): The non-working leg maintains 90 degrees of hip and knee flexion, mirroring the working leg. This position is more forgiving for beginners and reduces the rotational demand while still providing the unilateral glute loading.
Recommendation: Begin with the bent-knee position to establish the movement pattern, then progress to the straight-leg extended position as strength and control develop.
The Bridge Movement
- Engage the core gently by drawing the lower abdomen in slightly
- Press through the heel and midfoot of the working leg firmly into the floor
- Drive the hips upward until the body forms a straight line from the knee of the working leg to the shoulder
- At the top position, the hip of the non-working leg should be level with the working hip, not dropped
- Squeeze the glute of the working leg firmly at the top
- Hold the top position for 1 to 2 seconds
- Lower slowly and under control, maintaining the straight body line as long as possible during the descent
Key Technique Cues
Drive through the heel: The heel of the working foot is the primary contact point. Pressing through the heel specifically activates the glute rather than the quad. If the weight shifts to the toes, the quad takes over from the glute as the primary driver.
Level hips at the top: The pelvis must remain level at the top of the bridge, with neither hip higher than the other. If the non-working leg’s hip drops below the working leg’s hip, the gluteus medius of the working leg is not adequately maintaining pelvic level. This pelvic drop is the most common and most important error to address.
Do not hyperextend the lumbar spine: At the top of the bridge, the lower back should not arch beyond neutral. The bridge position is a straight line from knee to shoulder, not an arched lower back. Hyperextension at the top shifts loading from the glute to the lumbar extensors and reduces the training stimulus.
Working leg shin angle: The shin of the working leg should be approximately vertical at the top of the bridge. If the foot is too close to the body, the shin will be angled backward and the hamstrings will dominate. If the foot is too far from the body, the shin will be angled too far forward and the quad will be more involved. Adjust the foot position before each set.
Slow the descent: The eccentric (lowering) phase is at least as valuable as the concentric (lifting) phase for muscle development. Lower slowly over 2 to 3 seconds rather than dropping back to the floor.
Common Errors and Fixes
Error 1: Pelvic Drop on the Non-Working Side
What it looks like: At the top of the bridge, the hip of the extended leg drops below the level of the working hip, creating a lateral tilt of the pelvis.
Why it happens: Insufficient gluteus medius strength on the working side to maintain pelvic level under the asymmetric loading of the single-leg position.
Why it matters: Pelvic drop indicates that the stabilisation function of the gluteus medius is not being trained, only the hip extension function of the gluteus maximus. The pelvic stability demand is one of the primary reasons to perform the single-leg bridge.
Fix: Reduce the range of motion and only bridge to the height where the pelvis can remain level. Alternatively, return to the bilateral bridge with a banded variation (band above the knees pressing outward) to develop gluteus medius activation before the single-leg version. As gluteus medius strength develops, the full bridge height with level pelvis will become achievable.
Error 2: Driving Through the Toes Rather Than the Heel
What it looks like: The foot is positioned with more weight through the toes than the heel, and the calf and quad are visibly working harder than the glute.
Why it happens: Foot positioning habit or insufficient awareness of the heel-drive cue.
Why it matters: Toe-driving shifts the primary load from the gluteus maximus to the quadriceps and plantarflexors, changing the primary training stimulus.
Fix: Lift the toes of the working foot slightly off the floor during the bridge to enforce heel-only contact. This makes it physically impossible to drive through the toes.
Error 3: Lumbar Hyperextension at the Top
What it looks like: The lower back arches beyond neutral at the top of the bridge, with the hips driven higher than the straight knee-to-shoulder line.
Why it happens: Attempting to maximise bridge height without the gluteal strength to achieve it correctly, or habitual anterior pelvic tilt carrying over into the exercise.
Why it matters: Lumbar hyperextension at the top of the bridge shifts the loading from the glute to the lumbar extensors, reduces glute activation, and creates unnecessary lumbar stress.
Fix: Set a target height of the straight knee-to-shoulder line and stop there. Using a flat hand placed on the lower abdomen to monitor for the abdominal hollowing that accompanies hyperextension helps identify when the position has been exceeded.
Error 4: Using the Non-Working Leg for Stability
What it looks like: The extended non-working leg drifts to the floor or the heel is subtly pressed into the floor to assist with stability during the bridge.
Why it happens: The asymmetric demand of the single-leg bridge is greater than the current strength level, so the body finds ways to create additional support.
Why it matters: Using the non-working leg for support converts the single-leg bridge back toward the bilateral version, reducing the unilateral training stimulus.
Fix: Actively lift the non-working foot off the floor before initiating the bridge and maintain this elevated position throughout. A visual check in a mirror, or taping a sheet of paper under the non-working heel to ensure it does not make contact, are effective feedback tools.
Error 5: Hip Rotation During the Bridge
What it looks like: The pelvis rotates (one side of the hip rotates forward relative to the other) during the bridge movement.
Why it happens: Insufficient core anti-rotation strength, or the hip external rotators of the working leg are not maintaining neutral hip rotation.
Why it matters: Hip rotation during the bridge reduces the glute’s ability to produce hip extension in the optimal position and trains a compensation pattern.
Fix: Focus on keeping both hip bones facing the ceiling throughout the bridge. Actively maintain the neutral rotation of the working hip by pressing the knee gently outward (not inward) during the bridge.
Progressions and Variations
Beginner: Single Leg Glute Bridge With Bent Knee
The starting point for most people. The non-working leg is held at 90 degrees of hip and knee flexion, mirroring the working leg, rather than extended.
Sets and reps: 3 sets of 10 to 12 per side
Intermediate: Single Leg Glute Bridge With Extended Leg
The non-working leg extends straight toward the ceiling or at 45 degrees. This increases the rotational demand and the asymmetric loading.
Sets and reps: 3 sets of 10 to 12 per side
Intermediate: Single Leg Glute Bridge With Hold
Add a 3 to 5 second hold at the top of the bridge position. This increases the time under tension and the isometric gluteus medius demand.
Sets and reps: 3 sets of 8 per side with 3-second hold
Intermediate: Elevated Single Leg Glute Bridge
Place the working foot on an elevated surface (step, bench, or low box) to increase the range of hip extension and the glute stretch at the bottom of the movement.
How to do it:
- Place the working foot on a step or bench
- Perform the single-leg bridge from this elevated position
- The elevated position increases the hip extension range and the glute loading through that extended range
Sets and reps: 3 sets of 10 per side
Intermediate: Single Leg Glute Bridge With Band
Place a loop resistance band above the knees. During the bridge, the extended leg presses the band outward, adding a gluteus medius activation demand to both the working and non-working sides simultaneously.
Sets and reps: 3 sets of 12 per side
Advanced: Weighted Single Leg Glute Bridge
Place a dumbbell, weight plate, or kettlebell across the hip of the working side to add external resistance.
How to do it:
- Set up in the standard single-leg bridge position
- Place a dumbbell or weight plate across the working hip, holding it in place with both hands
- Perform the bridge with the additional load
- Begin with a light weight and progress gradually
Sets and reps: 3 to 4 sets of 8 to 10 per side with progressive loading
Advanced: Single Leg Hip Thrust
The single-leg hip thrust is the fully loaded progression of the single-leg glute bridge, performed with the upper back elevated on a bench.
How to do it:
- Sit with the upper back against a bench
- Extend one leg and plant the other foot on the floor
- Drive the hips upward on the single leg until the body forms a straight line
- Hold for 1 to 2 seconds at the top
- Lower slowly
Sets and reps: 3 sets of 10 to 12 per side
Rehabilitation: Single Leg Glute Bridge With Feedback Tool
Placing a foam roller or folded yoga mat between the extended thigh and a wall provides proprioceptive feedback about hip rotation and pelvic level during the bridge.
How to Programme the Single Leg Glute Bridge
As a bilateral bridge progression:
Once 3 sets of 20 bilateral glute bridges are achievable with clean technique, progress to the single-leg version at approximately half the reps (3 sets of 10 per side) before building back up.
As a warm-up activation exercise:
2 sets of 10 per side before running, lower body strength training, or athletic practice. Specifically relevant before activities involving single-leg loading (running, sports).
As a targeted rehabilitation exercise:
3 to 4 sets of 10 to 15 per side, 3 to 4 times per week, as part of a hip strengthening programme. See the hip strengthening and gluteus medius strengthening exercises articles on this site.
As part of a glute-focused training session:
Superset with the hip thrust for comprehensive glute development:
- Hip thrust: 4 x 10 at moderate to heavy load
- Single leg glute bridge: 3 x 12 per side
Asymmetry correction protocol:
When one side is noticeably weaker than the other, give the weaker side one additional set per session until the asymmetry reduces to within 10 percent. This is the most practical approach to addressing side-to-side glute strength differences.
Frequently Asked Questions
How do I know if I am activating my glute and not my hamstring during the single leg bridge?
Glute activation is felt as a contraction in the buttock muscle of the working leg, particularly at the top of the bridge with the hip fully extended. Hamstring dominance is felt as tension behind the thigh rather than in the buttock, and often as cramping in the back of the thigh. To shift from hamstring to glute dominance: move the working foot slightly further from the body (making the shin more vertical at the top), consciously focus on driving through the heel, and actively squeeze the glute at the top of each rep.
Why is one side much harder than the other?
Side-to-side strength asymmetry in the single leg glute bridge is common and reflects differences in gluteal strength between legs. This asymmetry is often related to dominant-side preference, previous injury on one side, or the compensatory patterns of running and daily activity. The single-leg bridge is one of the most effective ways to identify and address these asymmetries. Give the weaker side additional volume until the difference reduces.
How many reps of single leg glute bridges should I do?
This depends on the goal. For strength development with added resistance, 6 to 10 reps per side is appropriate. For muscle endurance and rehabilitation, 12 to 20 reps per side. For warm-up activation, 8 to 12 reps per side. Begin at the lower end of the rep range and increase progressively as the exercise becomes manageable.
Can the single leg glute bridge help with lower back pain?
Yes, when the lower back pain is associated with gluteal weakness and the resulting lumbar compensation patterns. The single-leg bridge develops the specific unilateral glute strength that prevents the asymmetric lumbar loading of weak-glute running and walking. However, if the single-leg bridge itself produces lower back pain, the technique should be assessed (checking for lumbar hyperextension at the top) and the bilateral version used until strength improves.
Is the single leg glute bridge the same as the single leg hip thrust?
They work the same muscles but through slightly different ranges and positions. The single-leg glute bridge is performed with the upper back on the floor, limiting the range of hip extension available. The single-leg hip thrust is performed with the upper back on a bench, allowing a greater range of hip extension and typically accommodating heavier loading. The bridge is the appropriate starting point, with the hip thrust as the natural progression.